The plant's stems are 15–50 centimetres (5.9–19.7 in) high while the leaves carry 5 to 9 leaflets with petioles being 4–15 centimetres (1.6–5.9 in) long. The leaflets themselves are elliptic and are 1.5–5 centimetres (0.59–1.97 in) long. Flowers have 3–10 centimetres (1.2–3.9 in) long racemes which have a two-lipped calyx. The upper lip of it is 4–6 millimetres (0.16–0.24 in) long while the lower one is 5–7 millimetres (0.20–0.28 in). L. kuschei have 10–13 millimetres (0.39–0.51 in) long corollas which are either blue or purple in colour. The fruits have 2–3 centimetres (0.79–1.18 in) long pods which carry seeds that are 4–6 centimetres (1.6–2.4 in) long.
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